Cross the rope and drop down on the far side. Here the Griever reappears, smashing its arachnid appendage through the ceiling in attempt to squash War.

Dodge the beast and attack the enemies that swarm the area. Eventually the Griever retreats. Take the northern passage to the dead end and smash the crystals.

Back in the flooded room you were in earlier, smash the crystals that are directly in front of you. This will raise the water level in the dungeon.

Now on the surface of the flooded room, grab the Map out of the nearby Chest (The Hollows 16/27).

In the room to the north you'll find a platform with a flatbed car sitting on it. A panel above this strange scene will move the giant pad the flatbed is on. Your goal here is to ditch the flatbed and replace it with a taller car so you can punch it into place under the Demon Growth in the northeast subway tube. First, destroy the crystals blocking the entrance to this tube.

Let's start by moving the platform to the west with the flatbed still on it. Activate the switch on the control panel above to do this.

Now, hop down and grab and punch the flatbed into the empty tunnel to the north. To the south of the round platform is a full sized train car.

Pull this north onto the platform until the lights turn green. Return to the control panel and move the large train car back east.

Hop down and grab the full-sized car and punch it, with the Tremor Gauntlet, into the northeast tube.Hop on the train and use it to reach the Demon Growth. Climb up and destroy the crystals at the top of the shaft.

You can now backtrack into the main hall where you fought the Griever. Here you'll be met by a new foe -- the Wraith Scout. These ladies are tough as nails, but the Tremor Gauntlet knocks them out of the sky, rendering them vulnerable to attacks.

After the room is cleared out, ascend the stairs on the east side and smash the crystals in the upper northeast corner of the room.